John b



(No Model.)

J. E. LONG.

H AND FIRE BXTINGUISHER. No. 368,293. Patented Aug. 16, 1887.

I fizyeiv 'ar: y y 3Q NlTED STATES JOHN E. LONG, OF NE\V YORK, N.

PATENT Erica,

HAND FIRE-EXTiNGUlSt-IER.

SPECIFICATION forming part of Letters Patent No. 38,293, dated August 16, 1887.

Application tiled Octobcritl, 15'55.

To all wrwm it may concern:

Be it known that 1, JOHN E. LONG, a citizen of the United States, and a resident of New York, in the con uty of New York and State of New York, have invented certain new and useful Improvements i n Hand Fire-Extinguishers, of which the following is a specification.

My invention relates to a hand fire-extinguisher; and it belongs to that class wherein a hand pump or syringe is combined with a portable tank or reservoir, in the latter of which is stored a supply of chemical fluid, such as will when thrown on a fire generate fire-extinguishing gas or gases.

Heretofore in this class of fire-extinguishers the pump or syringe has been so connected with the tank or reservoir that the gas-pro ducing liquid has at all times free access to the.

said pump or some of its working parts, and as a result the said parts are attacked by the chemicals of the fluid, corroded, and rendered inoperative, especially in cases where the ex tinguisher has been stored for some time. A further trouble has been the want of an air vent through which a supply of air may enter the reservoir to replace the fluid drawn therefrom.

My invention is to obviate these two objections; and it consists in first closing the connection between the reservoir and the pump by means of a thin diaphragm placed between the pump and the reservoir, and providing for the breaking of this sealing disk when it is desired to operate the pump. This latter result I preferably accomplish by placing the sealingdiskinunediately below the seat of the check valve and forming a sharp point upon the lower end of the valve, so that a downward pressure or blow upon the valve will cause it to puncture the diaphragm to form an opening through which the fluid may enter the pump. To facilitate this action of the valveits seat is formed in an extension of the pump-cylinder and the valve is mounted to move axially in line with the pumpchamber, so that when the piston is moved in it may be pressed upon the valve from above. To admit of this arrangement ol' the valve it is obvious that the delivery-pipe from the pump must be made to pass out at the side of the pump-cylimler. The device for admitting air to the reservoir con- Serial Xo. 190,394. (No model.)

sists of a sliarpiiointed rod mounted upon an external movable arm so that its point may be brought against the wall of the reservoir and caused to puncture the same. I preferably mount this point upon an arm pivoted to the upper end of the reservoir, which arm may also form a hook by which the extinguisher may be suspended when not required for use. This punetu 1'i ng-point may, however, be made to project downward from and be attached to the outwardlyprojecting portion ofthe pumppluuger, so that the same movement that drives down the valve to break the sealing between the pump and the reservoir will form an air-vent in the upper end of the reservoir.

My invention further consists in a guard to protect the spout or nozzle of the extinguisher.

In the accompanying drawings, Figure 1 is a side view of a hand fire-exti nguisher embodying my invention. Fig. 2 is a longitudinal section through the same. Fig. 3 is a top view; and Fig. at shows a modification in the mounting of the pump.

It has heretofore been considered advantageous to iuclose the pump or syringe within the reservoir, and in the principal figures I have adhered to this form of extinguisher, though it may be found better to mount the pump upon the outside of the reservoir, and in Fig. 4 I have shown this arrangement.

The construction as shown in Figs. 1, 2, and 8 is as follows:

A is a reservoir, preferably cylindrical and terminating at its lower end,in a conical nozale, a. Bis a pump or syringe cylinder, and is mounted to project longitudinally within the reservoir near one side thereof throughout its length and through its upper head, and this cylinder B is provided with a close-fitting plunger, 0, having an operating-rod, c, cxtending out past the end of the reservoir and terminating in a handle, 0, of a size and form to be conveniently grasped in the hand. Near the lower end ofthe pump-cylinder B is formed an annular valveseat, D, and into this seat is titted to open inwardly a valve, E, having an elongated stem, 0, extending through and below the valve-seat and sharpened to a point at its lower end, 0. The stem 0 of the valve is slotted longitudinally, and a pin, F, is passed through this slot and riveted into the sides of the cylinder B, so as to form a guide for the valve and also to limit its movement. A spout or delivery-tube, G, is led from the cylinder B above the valveseat D, and is made to extend through the conical end a of the reservoir and out through the wall thereof at the apex of the cone. A ball-valve, H, opening outwardly from the pump, is placed in this tube where itjoins the pump-cylinder, there being a wire net'work, h, secured across the tube to limit the movement of the ball. This ballvalve may be replaced by any other wellknown form of valve which may be adapted for the Work.

At the conical end a of the reservoir I place a cylindrical ring, I, to surround and project beyond the end of the spout or delivery-tube G and to form a guard therefor. Before filling the reservoir A with the extinguishingfluid, a disk or diaphragm, K, is sealed into or upon the end of the pump-cylinder B, so as to hermetically close it against the passage of the fluid, and this disk, when in position, is made to hold the valve E in a raised position above the seat D, as shown in Fig. 2, the point e of the valve bearing'upon the disk. The reservoir A is preferably filled through an opening, a, in its upper end, and after the reservoir has been so filled the opening is closed by soldering over it a disk of thin metal. It is through this thin closing disk that I preferably form the air-vent, as follows:

L is an arm pivoted to the side of the reservoir so as to swing inwardly over the upper end thereof, and it is provided with an in wardly-projecting spike, Z, at such a distance from the pivotal point of the arm L that, when'the latter is caused to swing over, the point of the spike will bear upon and puncture the closing-disk of the reservoir. The arm L maybe perforated or formed into a hook at its upper end, so that it may be suspended from a hook to support the extinguisher when not needed for use. In lieu of this swinging arm and its spike I may make use of a pointed arm, H, (see dotted lines in Fig. 4,) projecting laterally and downwardly .from the plunger-rod c of the pump.

The operation of my device is as follows: Suppose the sealing disk Kto be in position, the reservoir filled with the gas producing fluid, and the reservoir closed by a disk over the opening a. It is obvious that as long as the sealingdisk K remains unbroken none of the fluid can enter the pump, and its working parts will suffer no deterioration during storage. If, now, it is desired to project the fluid upon a fire, it is only necessary to force the plunger 0 down upon the valve E, and the pointed stem 0 of the latter will perforate the disk K, and the fluid may be drawn into the pump and forced out through the nozzle or delivery-tube G. Before operating the pump it will be necessary to swing over the arm L and cause the spike thereon to puncture the 010s ingdisk at a.

In Fig. 4 I have shown the pump-cylinder B as mounted upon the exterior of the reser voir A and connected therewith at its lower end by a lateral passage, B. In this case the sealingdisk K is placed in the cylinder above the passage B, and the end of the cylinder is closed by a cap or disk, I).

The advantage offered by this construction is that after the device has been used the disk K may be more readily renewed before refilling the reservoir.

Having described my invention, what I claim is- 1. I In a hand fireextinguisher comprising a 89 reservoir and a pump mechanism connected 3. In a hand'fire-extinguisher, the combination, with a port-able reservoir and with a pump connected therewith, of the valve E, with pointed stem 6, valve-seat D, sealing-dsk K, delivery-tube G, and valve H, all substantially as set forth.

4. In a hand fire-extinguisher, the eombination of the reservoir A, pump cylinder B, plunger '0, valve and valve-seat E D, sealing disk K, delivery-tube G and valve H, guard I, and pivoted arm L, with spike to form an air-vent, all substantially as and for the purpose set forth.

5. In a hand fire-extinguisher, the combination, with a portable reservoir and a pump connected therewith, of a spike or point mounted upon an external movable arm and adapted to be moved or swung into position to puncture the wall of the reservoir to form an airvent, as set forth.

Signed at New York, in the. county of New York and State of New York, this 15th day of October, A. D. 1885.

JOHN E. LONG.

Witnesses:

G. O. J. CLARK, H ENRY A. Hovr. 

